Change the sentences into the passive voice.

The taxi driver drove us to the airport.

Many people have seen a UFO in this area.

Have they watered the plants?

Someone stole my purse while I was doing the shopping.

The secretary has already sent all the documents to Mr. Smith.

They have offered Michael an excellent job in a British company.

The police could arrest the bank robbers when they were crossing the border.

Someone has used the computer without permission.

My grandmother is baking a delicious cake.

The maid was cleaning my hotel room when I came in.